In this seed, you will discover an underwater fortress that was introduced in version Minecraft PE 0.15.9 (0.16.0So, how do you get to the underwater fortress? After spawning in the MCPE world, head up a small hill directly in front of you.
Continue moving in the same direction for a while.
When you arrive at a spot where there is a lava pool on your right side, make sure to turn right.
Next, follow the shore towards the sandbank shown in the screenshot below.
Then, jump off the end of the sandbank into the water, and you will see the underwater fortress with its guardians!
I believe you will have plenty to explore. Here are some screenshots of the underwater fortress!
Я всё ввела,всё нашла,в воду прыгнула,но на дне только песок и гравий